Microwave-to-terahertz dielectric resonators for liquid sensing in microfluidic systems
File(s)
Published version
Author(s)
Type
Conference Paper
Abstract
The microwave-to-terahertz frequency range offers unique opportunities for the sensing of liquids based on the degree of molecular orientational and electronic polarization, Debye relaxation due to intermolecular forces between (semi-)polar molecules and collective vibrational modes within complex molecules. Methods for the fast dielectric characterization of (sub-)nanolitre volumes of mostly aqueous liquids and biological cell suspensions are discussed, with emphasis on labon- chip approaches aimed towards single-cell detection and label-free flow cytometry at microwave-to-terahertz frequencies. Among the most promising approaches, photonic crystal defect cavities made from high-resistivity silicon are compared with metallic split-ring resonant systems and high quality factor (Q-factor) whispering gallery-type resonances in dielectric resonators. Applications range from accurate haemoglobin measurements on nanolitre samples to label-free detection of circulating tumor cells. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Editor(s)
Razeghi, M
Baranov, AN
Zavada, JM
Pavlidis, D
Date Issued
2016-09-26
Date Acceptance
2016-08-28
Citation
Terahertz Emitters, Receivers, and Applications VII, 2016, 9934
ISBN
978-1-5106-0260-1
ISSN
0277-786X
Publisher
Society of Photo-optical Instrumentation Engineer
Journal / Book Title
Terahertz Emitters, Receivers, and Applications VII
Volume
9934
Copyright Statement
Copyright © 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000390020100007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/M001121/1
Source
Conference on Terahertz Emitters, Receivers, and Applications VII
Subjects
Science & Technology
Physical Sciences
Optics
microwave and terahertz liquid characterization
label free cancer cell detection
dielectric resonators
photonic crystal resonators
Publication Status
Published
Start Date
2016-08-28
Finish Date
2016-08-31
Coverage Spatial
San Diego, CA